* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: #091921;
}

.clock {
    width: 350px;
    height: 350px;
    display: flex;
    justify-content: center;
    align-items: center;
    background: url(/2022-6-6使用Javascript制作时钟/img/clock.png) left/cover;
    border: 4px solid #091921;
    border-radius: 50%;
    box-shadow:
        0 -15px 15px rgba(255, 255, 255, 0.05),
        inset 0 -15px 15px rgba(255, 255, 255, 0.05),
        0 15px 15px rgba(0, 0, 0, 0.3),
        inset 0 15px 15px rgba(0, 0, 0, 0.3);
}

.clock::before {
    content: '';
    position: absolute;
    width: 15px;
    height: 15px;
    background: #fff;
    border-radius: 50%;
    z-index: 10000;
}

.clock .hour,
.clock .min,
.clock .sec {
    position: absolute;
}

.clock .hour,
.hr {
    width: 160px;
    height: 160px;
}

.clock .min,
.mn {
    width: 190px;
    height: 190px;
}

.clock .sec,
.sc {
    width: 230px;
    height: 230px;
}

.hr,
.mn,
.sc {
    display: flex;
    justify-content: center;
    position: absolute;
    border-radius: 50%;
}

.hr::before {
    content: '';
    position: absolute;
    width: 8px;
    height: 80px;
    background: #ff105e;
    z-index: 10;
    border-radius: 6px 6px 0 0;
}
.mn::before {
    content: '';
    position: absolute;
    width: 4px;
    height: 90px;
    background: #fff;
    z-index: 11;
    border-radius: 6px 6px 0 0;
}
.sc::before {
    content: '';
    position: absolute;
    width: 2px;
    height: 150px;
    background: #fff;
    z-index: 12;
    border-radius: 6px 6px 0 0;
}